外层为false，逐级向内层判断

 

$scope.nums=700;

$scope.result=($scope.nums>300)?($scope.nums>400)?($scope.nums>500)?($scope.nums>600)?'飞机':'高铁':'汽车':'客车':'无';

console.log($scope.result);

 

运算符的简单使用小例子（开关按钮效果）

一、页面结构

<div id="div1" class="open1">

<div id="div2" class="open2"></div>

</div>

二、样式

#div1{

width: 170px;

height: 100px;

border-radius: 50px;

position: relative;

}

#div2{

width: 96px;

height: 96px;

border-radius: 48px;

position: absolute;

background: white;

box-shadow: 0px 2px 4px rgba(0,0,0,0.4);

}

.open1{

background: rgba(0,184,0,0.8);

}

.open2{

top: 1px;

right:0px;

}

.close1{

background: rgba(255,255,255,0.4);

border:3px solid rgba(0,0,0,0.15);

border-left: transparent;

}

.close2{

left: 0px;

top: 0px;

border:2px solid rgba(0,0,0,0.1);

}

三、事件方法

window.οnlοad=function(){

var div2=document.getElementById("div2");

var div1=document.getElementById("div1");

div2.οnclick=function(){

div1.className=(div1.className=="close1")?"open1":"close1";

div2.className=(div2.className=="close2")?"open2":"close2";

}

}